AOpen AX4BPRO User Manual
AAXX44BB // AAXX44BB PPrroo OOnnlliinnee MMaannuuaall
AX4B / AX4B Pro
DOC. NO.: AX4BP-OL-E0201B
Overview
Installation
Hardware
Drivers &
Utilities
BIOS Setup
AWARD
Glossary
Troubleshooting &
Technical Support
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WWhhaatt’’ss iinn tthhiiss mmaannuuaall
AX4B / AX4B P ro ...............................................................................................................................1
What’s in this manual ......................................................................................................................................................2
You Must Notice ..............................................................................................................................................................9
Before You Start............................................................................................................................................................10
Overview .......................................................................................................................................................................11
Feature Highlight...........................................................................................................................................................12
Quick Installation Procedure..........................................................................................................................................16
Motherboard Map ..........................................................................................................................................................17
Block Diagram ...............................................................................................................................................................18
Hard war e Ins tal lat ion..................................................................................................................19
About “Optional” and “Upgrade Optional”…...................................................................................................................20
JP14 Clear CMOS Data .................................................................................................................................................2 1
CPU Installation ............................................................................................................................................................. 22
CPU Jumper-less Design............................................................................................................................................... 25
Full-range Adjustable CPU Core Voltage (AX4B Pro Only)............................................................................................27
CPU and System Fan Connector (with H/W Monit oring)................................................................................................ 2 9
JP28 Keyboard/Mouse Wake-up Enable/Disable Ju mper ..............................................................................................30
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DIMM Sockets ...............................................................................................................................................................31
Front Panel Connector ..................................................................................................................................................33
ATX Power Connector ...................................................................................................................................................34
AC Power Auto Recovery ..............................................................................................................................................35
IDE and Floppy Connector ............................................................................................................................................36
IrDA Connector ..............................................................................................................................................................38
AGP (Accelerated Graphic Port) Expansion Slot ........................................................................................................... 39
AGP Protection Technology...........................................................................................................................................40
WOM (Zero Voltage Wake on Modem) Connector.........................................................................................................41
WOM by External BOX Modem...................................................................................................................................... 42
WOM by Internal Modem Card ...................................................................................................................................... 43
WOL (Wake on LAN).....................................................................................................................................................44
CNR (Communication and Network Riser) Expansi on Slot ............................................................................................46
PC99 Color Coded Back Panel......................................................................................................................................47
Support 2
Chassis Intrusion Connector.......................................................................................................................................... 49
CD Audio Connector......................................................................................................................................................5 0
Modem Audio Connector ...............................................................................................................................................51
AUX-IN Connector.........................................................................................................................................................52
nd
USB Port.....................................................................................................................................................48
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GPO (General Purpose Output) Connector ...................................................................................................................53
Front Audio Connector...................................................................................................................................................54
Die-Hard BIOS (AX4B Pro only, Upgrade optional)........................................................................................................55
Dr. LED Connector ........................................................................................................................................................57
Dr. Voice (AX4B Pro only) .............................................................................................................................................59
JP1 Buzzer and JP2 Speaker Enable/ Dis able J umper ...................................................................................................60
Battery-less and Long Life Design.................................................................................................................................61
Over-current Protection .................................................................................................................................................62
Hardware Monitoring .....................................................................................................................................................63
Resettable Fuse ............................................................................................................................................................64
2200µF Low ESR Capacitor...........................................................................................................................................65
Layout (Frequency Isolation Wall) .................................................................................................................................66
Enlarged Aluminum Heatsink.........................................................................................................................................67
Driver and Utility..........................................................................................................................68
Auto-run Menu from Bonus CD Disc.............................................................................................................................. 69
Installing Intel® Chipset Software Installat ion Utili ty......................................................................................................70
Installing Intel IAA Driver ...............................................................................................................................................7 1
Installing Onboard Sound Driver....................................................................................................................................72
ACPI Suspend to Hard Drive.........................................................................................................................................73
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ACPI Suspend to RAM (STR)........................................................................................................................................ 78
AWARD BIOS ................................................................................................................................80
About BIOS Function Description…...............................................................................................................................81
How To Use Award™ BIOS Setup Program...................................................................................................................82
How To Enter BIOS Setup .............................................................................................................................................84
BIOS Upgrade ............................................................................................................................................................... 85
Overclocking ................................................................................................................................87
VGA Card & Hard Disk ..................................................................................................................................................88
Glossary .......................................................................................................................................89
AC97 ............................................................................................................................................................................. 89
ACPI (Advanced Configuratio n & Power Interfac e) ........................................................................................................89
AGP (Accelerated Graphic Port).................................................................................................................................... 89
AMR (Audio/Modem Riser)............................................................................................................................................90
AOpen Bonus Pack CD ................................................................................................................................................. 90
APM (Advanced Power Management)...........................................................................................................................90
ATA (AT Attachment)......................................................................................................................................................90
ATA/66...........................................................................................................................................................................90
ATA/100......................................................................................................................................................................... 91
BIOS (Basic Input/Output Sys tem) ................................................................................................................................ 91
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Bus Master IDE (DMA mode).........................................................................................................................................91
CNR (Communication and Networki ng Riser)................................................................................................................92
CODEC (Coding and Decoding) ....................................................................................................................................92
DDR (Double Data Rated) SDRAM................................................................................................................................92
DIMM (Dual In Line Memory Module) ............................................................................................................................9 2
DMA (Direct Memory Access) ........................................................................................................................................ 93
ECC (Error Checking and Correction)............................................................................................................................93
EDO (Extended Data Output) Memory...........................................................................................................................93
EEPROM (Electronic Erasable Programmab le ROM)....................................................................................................93
EPROM (Erasable Programmabl e ROM)....................................................................................................................... 9 3
EV6 Bus ........................................................................................................................................................................94
FCC DoC (Declaration of Conformity)............................................................................................................................ 94
FC-PGA (Flip Chip-Pin Grid Array) ................................................................................................................................94
Flash ROM ....................................................................................................................................................................95
FSB (Front Side Bus) Clock ...........................................................................................................................................9 5
2
I
C Bus ..........................................................................................................................................................................95
IEEE 1394 .....................................................................................................................................................................9 6
Parity Bit........................................................................................................................................................................96
PBSRAM (Pipelined Burst S RAM) ................................................................................................................................. 96
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PC-100 DIMM ................................................................................................................................................................ 97
PC-133 DIMM ................................................................................................................................................................ 97
PC-1600 or PC-2100 DDR DRAM .................................................................................................................................97
PCI (Peripheral Component Interface) Bus....................................................................................................................9 7
PDF Format...................................................................................................................................................................97
PnP (Plug and Play) ......................................................................................................................................................98
POST (Power-On Self Test) ...........................................................................................................................................9 8
RDRAM (Rambus DRAM).............................................................................................................................................. 98
RIMM (Rambus Inline Memory Module)......................................................................................................................... 98
SDRAM (Synchronous DRAM) ......................................................................................................................................99
Shadow E
SIMM (Single In Li ne M emory Mod ule)..........................................................................................................................99
SMBus (System Management Bus) ............................................................................................................................... 99
SPD (Serial Presence Detect ) .....................................................................................................................................100
Ultra DMA .................................................................................................................................................................... 1 00
USB (Universal Serial B us) ..........................................................................................................................................100
VCM (Virtual Channel Memory)...................................................................................................................................101
ZIP file.........................................................................................................................................................................10 1
2
PROM ..........................................................................................................................................................99
Troubleshooting.........................................................................................................................102
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Technical Support ......................................................................................................................106
Product Registration..................................................................................................................10 9
How to Conta ct Us.....................................................................................................................11 0
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YYoouu MMuusstt NNoottiiccee
Adobe, the Adobe logo, Acrobat is trademarks of Adobe Systems Incorporated.
AMD, the AMD logo, Athlon and Duron are trademarks of Advanced Micro Devices, Inc.
Intel, the Intel logo, Intel Celeron, Pentium II, Pentium III are trademarks of Intel Corporation.
Microsoft, Windows, and Windows logo are either registered trademarks or trademarks of Microsoft Corporation in the United
States and/or other countries.
All product and brand names used on this manual are used for identification purposes only and may be the registered
trademarks of their respective owners.
All of the specifications and information contained in this manual are subject to change without notice. AOpen reserves the right
to revise this publication and to make reasonable changes. AOpen assumes no responsibility for any errors or inaccuracies that
may appear in this manual, including the products and software described in it.
This documentation is protected by copyright law. All rights are reserved.
No part of this document may be used or reproduced in any form or by any means, or stored in a database or retrieval
system without prior written permission from AOpen Corporation.
Copyright
©
1996-2000, AOpen Inc. All Rights Reserved.
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BBeeffoorree YYoouu SSttaarrtt
This Online Manual will introduce to the user how this product is installed. All useful information will be described in later
chapters. Please keep this manual carefully for future upgrades or system configuration changes. This Online Manual is saved
in PDF format
get free download from Adobe web site
Although this Online Manual is optimized for screen viewing, it is still capable for hardcopy printing, you can print it by A4 paper
size and set 2 pages per A4 sheet on your printer. To do so, choose File > Page Setup and follow the instruction of your printer
driver.
Thanks for the help of saving our earth.
, we recommend using Adobe Acrobat Reader 4.0 for online viewing, it is included in Bonus CD disc or you can
.
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OOvveerrvviieeww
Thank you for choosing AOpen AX4B / AX4B Pro motherboard. The A X4B / AX4B Pro is Intel® Socket 478 motherboard (M/B)
based on the ATX form factor featuring the Intel
AX4B / AX4B Pro motherboard can support Intel
In the AGP performance, it has one AGP slot which supports 1.5V AGP interface with 4x SBA/Data Transfer and 2x/4x Fast
Write capability and pipelined spilt-transaction long burst transfer up to 1056MB/sec. According to different customer’s
requirements, the Intel 845 chipset memory interface supports DDR SDRAM devices with densities of 64, 128, 256, 512Mb DDR
SDRAM DIMM modules and the maximum memory size can be up to 2 GB. The onboard IDE controller supports Ultr a DMA
33/66/100 mode and the transfer rate up to 100MB/s. Further flexibility can
be achieved by taking advantage of the Communication and Network
Riser (CNR) card option that allows audio, modem, and/or LAN
configuration on a single baseboard design. Besides, the AX4B /
AX4B Pro has an AD1885 AC97
providing high performance and magic surround stereo sound to
let people enjoy working with it. Now, let’s enjoy all features from
AOpen AX4B / AX4B Pro motherboard.
®
845 (Brookdale) chipset. As high performance chipset built in the M/B, the
®
Socket 478 Pentium® 4 (Brookdale) and 400 MHz Front Side Bus (FSB) clock.
CODEC chipset onboard,
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FFeeaattuurree HHiigghhlliigghhtt
CPU
Supports Intel® Socket 478 Pentium® 4 (Brookdale) 1.4GHz~2.4GHz+ with 400MHz Front Side Bus (FSB) designed for Socket
478 technology.
Chipset
With the Intel® 845 (Brookdale) chipset, Intel delivers a discrete graphics solution with all the performance, innovative features
and proven reliability of the Intel
AGP graphics solution for Intel
Controller Hub (ICH2) features two USB controllers supporting four USB ports. With support for 5.1 channels of AC’97 audio and
the ability to make the most of soft audio/modem technology, the 845 chipset delivers an ideal solution for innovative new form
factors.
®
845 chipset. With its highly scalable design, the new 845 chipset offers an ideal, leading-edge
®
Pentium® 4 processor platforms. And the smart integration in the Intel 845 chipset's I/O
Expansion Slots
Including five 32-bit/33MHz PCI, one CNR and one AGP 1x2x4X slots. The PCI local bus throughput can be up to 132MB/s. The
Communication & Nectworking Riser (CNR)
card. The Accelerated Graphics Port (AGP)
supports data transfer rate up to 1056MB/s. AX4B / AX4B Pro motherboard includes one 1.5V AGP expansion slot with 4x
SBA/Data Transfer and 2x/4x Fast Write capability. For AD and SBA signaling, AX4B / AX4B Pro motherboard can support 4X
mode. Of five PCI slots provided, all of them are master PCI slots with arbitration and decoding for all integrated functions and
LPC bus.
slot provided from AX4B / AX4B Pro can support CNR interface for a Modem/Audio
specification provides a new level of video display sophistication and speed which
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Memory
Provides three 184-pin DDR SDRAM DIMM sockets that support up to 2GB of PC-200/266 compliant DDR SDRAM
(Synchronous Dynamic Random Access Memory). You may install 64, 128, 256, 512Mb DDR SDRAM DIMM modules into each
socket.
Ultra DMA 33/66/100 Bus Master IDE
Comes with an on-board PCI Bus Master IDE controller with two connectors that supports four IDE devices in two channels,
supports Ultra DMA
33/66/100, PIO Modes 3 and 4 and Bus Master IDE DMA Mode 5, and supports Enhanced IDE devices.
On-board AC’97 Sound
AX4B / AX4B Pro uses the AD 1885 AC97 sound chip. This on-board audio includes a complete audio recording and playback
system.
1MHz Stepping Frequency Adjustment
Provides “1MHz Stepping Frequency Adjustment” function in the BIOS. This magic function allows you adjust CPU FSB
frequency from 100~248 by 1MHz stepping adjustment, and lets your system can get maximum performance.
Watch Dog Timer
Includes AOpen “Watch Dog Timer” function that can auto-reset system in 4.8 seconds when you fail to system overclocking.
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Die-Hard BIOS with external controller ( AX4B Pro only, Upgrade optional)
The Die-Hard BIOS technology is a very effective hardware protection method that doesn’t involve any software or BIOS coding.
Hence, it is 100% virus free.
Four USB Connectors
Provides two ports, four USB connectors for USB interface devices, s uch as mouse, keyboard, m odem, scanner, etc.
Dr. LED (Upgrade Optional)
The Dr. LED has 8 LEDs on this AX4B / AX4B Pro M/B to easily show what kind of problems you may encounter.
AGP Protection Technology
With AGP Protection Technology implemented, this motherboard will automatically detect the voltage of AGP card and prevent
your chipsets from being burnt out.
Dr. Voice (AXBP Pro only)
The Dr. Voice provides 4 kinds of language version (English, Chinese, Japanese and German) that can easily to tell what kind of
problem you may encounter. Specially tailored made for users, we have defaulted the language versions of Japanese market to
Japanese only to save users from the trouble of setting jumpers, and thus making motherboard a real j umper less design.
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Power Management/Plug and Play
Supports the power management function that confirms to the power-saving standards of the U.S. Environmental Protection
Agency (EPA) Energy Star program. It also offers Plug-and-Play
making the system much user-friendlier.
, which helps save users from configuration problems, thus
Hardware Monitoring Management
Supports CPU or system fans status, temperature and voltage monitoring and alert, through the on-board hardware monitor
module.
Enhanced ACPI
Fully implement the ACPI standard for Windows® 98/ME/2000 series compatibility, and supports Soft-Off , S TR (Suspend t o RAM,
S3), STD (Suspend to Disk, S4) features.
Super Multi-I/O
Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilit ies. UART can also be
directed from COM1 to the Infrared Module for the wireless connections.
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QQuuiicckk IInnssttaallllaattiioonn PPrroocceedduurree
This page gives you a quick procedure on how to install your system. Follow each step accordingly.
1. Installing CPU and Fan
2. Installing System Memory (DIMM)
3. Connecting Front Panel Cable
4. Connecting IDE and Floppy Cable
5. Connecting ATX Power Cable
6. Connecting Back Panel Cable
7. Power-on and Load BIOS Setup Default
8. Setting CPU Frequency
9. Reboot
10. Insta lli ng O pe rat in g Sys tem (s uch as W ind ows 98 )
11. Installing Driver and Utility
16
BIOS
r
r
r
r
r
A
)
A
r
r
)
JP15 & 16 D
r
per
r
p
)
AAXX44BB // AAXX44BB PPrroo OOnnlliinnee MMaannuuaall
Green: AUX-IN Connector
Red: MODEM-CN Connector
Black: CD-IN Connecto
Onboard AC’97 CODEC
Front Audio Connecto
JP14 CMOS Clear Jumper
Chassis Intrusion Connector
Die Hard
(AX4B Pro only,
upgrade optional)
JP30 Die Hard BIOS
Select jumpe
(AX4B Pro only,
Uprade optional
CNR Expansion Slot
IrDA Connector
Dr. LED Connecto
4Mbit Flash ROM
2nd USB Connecto
JP2 Jumper (Speaker)
Front Panel Connector
JP1 Jum
Select Jumper (AX4B Pro only)
er (Buzzer
ATA/33/66/100
IDE Connector x2
FAN3 Connecto
r. Voice Language
Motherboard Map
PC99 Colored Back Panel
GPO1 Connecto
FDD Connecto
17
Resettable Fuse
JP28 Keyboard/Mouse Wakeup
Enable/Disable Jum
FAN2 Connector
32-bit PCI Expansion Slot x5
2200μF Low ESR Capacitors
4-pin 12V. ATX Power Connector
GP 4x Expansion Slot
(for 1.5V AGP card )
478-pin CPU socket with Voltage
and Frequency Auto-detection that
support Intel
1.4~2.4 GH z+ CP U
Intel®845 chipset (Brookd ale
CPU Fan Connector with H/W
Monitoring Function
184-pin DIMM Socket x3 supports
PC-200/266 DDR SDRAM
maximum up to 2 GB
WOM Connector
WOL Connecto
TX Power Connector
®
Pentium® 4
AAXX44BB // AAXX44BB PPrroo OOnnlliinnee MMaannuuaall
BBlloocckk DDiiaaggrraamm
Socket 478
Intel
Pentium 4
CPU
AGP 4X Slot
400MHz System
Bus
Floppy Disk Drive x2
PC-200/266 DDR
SDRAM Up to 2GB
DIMM Socket x3
Intel 845
RG82845
Connector x4
MCH
USB
PCI Bus
1stUSB Port
2ndUSB Port
32-bit PCI Slot x5
ATA
33/66100
Primary
Channel
Secondary
Channel
Intel
FW82801BA
ICH2
Low Pin
Count
Super
I/O
AC97
CODEC
AC Link
Firmware Hub
4Mbit Flash EEPROM
Parallel Port
Serial Port x2
IDE Drive x4
CNR Slot
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HHaarrddwwaarree IInnssttaallllaattiioonn
This chapter describes jumpers, connectors and hardware devices of this motherboard.
Note: El ectrostatic discharge (ESD) can damage your processor, disk drives, expansion boards, and
other components. Always observe the following precautions before you install a system component.
1. Do not remove a component from its prot ective packaging until you are ready to install it.
2. Wear a wrist ground strap and attach it to a metal part of the system unit before handling a
component. If a wrist strap is not available, maintain contact with the system unit t hroughout any
procedure requiring ESD protection.
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AAbboouutt ““OOppttiioonnaall”” aanndd ““UUppggrraaddee OOppttiioonnaall””……
When you read this online manual and start to assemble your computer system, you may find some of functions are call ed
“Optional”, and some are called “Upgrade Optional”. Though all AOpen motherboards include many amazing and powerful
features, in some situations, these powerful features are not used to every user. Hence, we changed some key features as
“Optional” for you to choose. Some optional functions that can be upgraded by users, we call them “Upgrade Optional”. As for
those optional functions that can’t be upgraded by ourselves, we call them “Optional”. If needed, you can contact our local
distributors or resellers for purchasing “Upgrade Optional” components, and again you can visit AOpen official web site:
www.aopen.com
for more detail information.
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JJPP1144 CClleeaarr CCMMOOSS DDaattaa
You c an clear CMOS to restore system default setting. To cl ear the CMOS, follow the procedure below.
1. Turn off the s ystem and unplug the AC power.
2. Remove ATX power cable from connector PW R2.
3. Locate JP14 and short pins 2-3 for a few seconds.
4. Return JP14 to its normal setting by shorting pins 1 & pin2.
5. Connect ATX power cable back to connector PWR2.
Pin 1
1
Normal
default)
1
Clear CMOS
Tip: W hen should I Clear CMOS?
1. Boot fa il bec aus e of ove rc lock i ng…
2. Forget password…
3. Troubleshooting…
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CCPPUU IInnssttaallllaattiioonn
This motherboard supports Intel® Pentium 4 Socket 478 series CPU (Brookdale). Be careful of CPU orientation when you plug it
into CPU socket.
1. Pull up the CPU socket lever and
up to 90-degree angle.
2. Locate Pin 1 in the socket and look for a cut edge on the CPU upper
interface. Match Pin 1 and cut edge, then insert the CPU into the socket.
Note: These pictures are for example only, it may not exactly be the same motherboard.
CPU socket
Lever
CPU pin 1 and
cut edge
CPU cut edge
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3. Press down the CPU socket lever and finish
CPU installation.
Note: This picture is for example only, it m ay not exactly be the same motherboard.
CPU cut edge
Note: If you do not match the CPU
socket Pin 1 and CPU cut edge well, it
ma
damage the CPU.
Note: This socket supports
Micro-FC-PGA2 package CPU, which
is the latest CPU package developed
by Intel. Other forms of CPU package
are impossible to be fitted in.
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CCPPUU FFaann IInnssttaallllaattiioonn
This motherboard comes with a retention module attached on the CPU socket when shipped, we strongly recommend you to
install AOpen special designed CPU Fan as shown below on the retention module for better heat dissipation. Please install the
CPU Fan correctly as the following pictures shown.
1. Gently put the CPU Fan down on the
retention module with clips aligning
correctly to the four corners.
2. Pressing down the four clips with force one by
one on the retention module.
Clip
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CCPPUU JJuummppeerr--lleessss DDeessiiggnn
CPU VID signal and SMbus clock generator provide CPU voltage auto-detection and allows the user to set the CPU frequency
through the BIOS setup
designs are eliminated. There will be no worry of wrong CPU voltage detection.
, therefore no jumpers or switches are used. The disadvantages of the Pentium based jumper-less
Intel® Socket 478
Pentium 4 CPU
CPU VID signal
Power Regulator
(Automatically generates CPU voltage)
CPU Freq. Ratio
CPU voltage
Clock
Generator
BIOS
Controlled
Circuit
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AAOOppeenn ““WWaattcchh DDoogg TTiimmeerr””
With this motherboard, AOpen provides a very special, useful feature for overclockers. When you power-on the system, the
BIOS will check last system POST
the CPU FSB
reset the system to reboot in five seconds. Then, BIOS will detect the CPU’s default frequency and POST again. With this
special feature, you can easily overclock your system to get higher system performance, and without removing the cover of
system housing to set the jumper to clear CMOS data when your s ystem hanged.
frequency by user’s setting that stored in the BIOS. If system failed in BIOS POST, the “Watch Dog Timer” will
AOpen
Watch Dog
Timer
status. If it succeeded, the BIOS will enable “Watch Dog Timer” function immediately, and set
Enable/Disable Signal
from BIOS
Countdown about
5 seconds if fails
in POST
Reset Signal
Clock Generator
BIOS
CPU ID Signal
CPU
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FFuullll--rraannggee AAddjjuussttaabbllee CCPPUU CCoorree VVoollttaaggee ((AAXX44BB PPrroo OOnnllyy))
This function is dedicated to overclockers and supports Adjustable CPU Core Voltage from 1.10V to 1.85V. But this motherboard
can also automatically detects CPU VID signal and generates proper CPU core voltage.
SSeettttiinngg CCPPUU FFrreeqquueennccyy
BIOS Setup > Frequency/Voltage Control > CPU Clock Setting
This motherboard is CPU jumper-less design, you can set CPU frequency through the BIOS setup, and no j umpers or switches
are needed.
CPU Ratio
CPU FS B
Home
8x, 9x, 10x,…22x, 23x, 24x
100~248MHz
Tip: If your system hangs or fails to boot because of
overclocking, simply use <Home> key to restore the
default setting or you can wait the AOpen “Watch Dog
Timer” reset the system after five seconds and system
will auto-detect hardware again.
27
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Core Frequency = CPU FSB Clock * CPU Rati o
PCI Clock = CPU FSB Clock / Clock Ratio
AGP Clock = PCI Clock x 2
CPU
Pentium 4
1.4G
Pentium 4
1.5G
Pentium 4
1.6G
Pentium 4
1.7G
Pentium 4
1.8G
Pentium 4
1.9G
Pentium 4
2.0G
Pentium 4
2.2G
Pentium 4
2.4G
CPU Core
Frequenc
1400MHz 100MHz 400MHz 14x
1500MHz 100MHz 400MHz 15x
1600MHz 100MHz 400MHz 16x
1700MHz 100MHz 400MHz 17x
1800MHz 100MHz 400MHz 18x
1900MHz 100MHz 400MHz 19x
2000MHz 100MHz 400MHz 20x
2200MHz 100MHz 400MHz 22x
2400MHz 100MHz 400MHz 24x
FSB
Clock
System
Bus
Ratio
Warning: Intel® 845 chipset supports
maximum 400MHz (100MHz*4) system
bus and 66MHz AGP clock; higher clock
setting may cause serious system
damage.
Warning: To avoid possible CPU damage caused by
overheating, an automatic shutdown of system had been
especially designed on this motherboard. System would
be automatically power off when this motherboard with
implementation of THERMTRIP circuit detected a CPU
tem
erature above 135 degree for 4 seconds.
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CCPPUU aanndd SSyysstteemm FFaann CCoonnnneeccttoorr ((wwiitthh HH//WW MMoonniittoorriinngg))
Plug in the CPU fan cable to the 3-pin CPU FAN connector. If you have chassis fan, you can also plug it on System Fan (FAN2)
or FAN3 (AUX Fan) connector.
FAN3 Connector
GND
+12V
SENSOR
FAN2 Connector
CPU Fan Connector
Note: Some CPU fans do not have
sensor pin, so that cannot support
hardware monitoring function.
GND
+12V
SENSOR
GND
+12V
SENSOR
29
AAXX44BB // AAXX44BB PPrroo OOnnlliinnee MMaannuuaall
JJPP2288 KKeeyybbooaarrdd//MMoouussee WWaakkee--uupp EEnnaabbllee//DDiissaabbllee JJuummppeerr
This motherboard provides keyboard / mouse wake-up function. You can use JP28 to enable or disable this function, which
could resume your system from suspend mode with keyboard or mouse installed. The factory default setting is set to
“Disable”(1-2), and you may enable this function by setting the jumper t o 2-3.
KB/Mouse Wake-up
Disable
(Default)
JP28
Enable
30